Builder-motion for spinning or winding machines.



A. GASTONGUAY.

BUILDER MOTION FORSPINNING OR'WINDING MACHINES.

APPLICATION HLED DEC- 14. I916.

Patented Nov. 6, 1917.

UNITED STATES PATENT oEEIoE.

ALBERT GASTONGUAY, F LE ROY, NEW YORK.

BUILDER-MOTION FOR SPINNING OR WINDING MACHINES.

Specification of Letters Patent.

Patented Nov. 6, 1917.

Application filed December 14, 1916. Serial No. 137,041.

To all whom it may concern:

such machines whereby the yarn is laid or' wound upon the bobbins or carriers in desired form.

In machines of this general character, it

' is the common practice to direct the yarn to the carriers or bobbins by means of 'uides which are given a traverse movement ongitudinally of the carriers or bobbins as the yarn is wound thereon. This traverse movement may be such as to lay the yarn upon the carriers or bobbins in what is known as a filling wind or a warp wind. In either case, however, the usual practice is to lift the guides by means .of a weight, and to lower them by means of builder motion devices which include a builder arm and a builder cam against which the builder arm is held by the weight, so that as the cam is rotated, the weight is permitted to raise the guides and then the guides are lowered by a reverse movement of the weight due to the varying contour of the cam.

As the builder arm constantly bears upon the cam under the action of the weight, there cam surface.

will be a tendency of the weight acting throu h the builder arm to advance or retard t l 2e cam according to the contour of the In the case of a builder motion, the cam is of that type known as a uniform motion cam, the periphery or cam path of which inclines in different directions relative to the axis of the cam, so that when the direction of traverse is changed, there is a tendency of the weight acting upon the cam through the builder arm to either advance or retard the cam. Owing to the back lash or lost motion that exists in the train of mechanism that actuates the cam, the de-- filling wound carriers or bobbins, especially at the top of a traverse where an overlapping or bunching of the yarn is found to exist. I

An important feature of the present invention, therefore, consists of means for causing the yarn to effect its traverse with out a dwell at the end of the traverse or where the direction of traverse is changed.

I During the movement of the guides between .the top and bottom of the'traverse, any slight back lash or lost motion is not so important and objectionable as at the ends of the traverse, and another feature of the invention consists in taking up any such back lash orlost motion during the traverse of the guides between the upper andlower ends of the traverse movement.

. Other important features of the present invention will be hereinafter described in addition to the above, and in connection with the accompanying drawings, which show a ring spinning machine equipped with the present invention; but it is to be understood that while the invention is particularly well adapted for use in this type of spinning machine, it is not restricted thereto and may be employed with advantage in other forms of spinning or'winding machines.-

In the drawings Figure 1 shows in front elevation, at portion of a ring spinning machine provided with the present invention;

Fig. 2 is a detached detail showing the builder motion proper, and more particularly the builder cam and associated parts;

Fig. 3 is a detail in plan view, showing the builder arm and auxiliary device con-v nected thereto to prevent the dwell in traverse at the ends of the traverse movement;

Fig. 4 is an enlarged detail looking from the left of Fig. 3;

Fig. 5 is a part sectional view showing the overlapping and bunching of yarn at the ends of the traverse in a filling wound bobbin; and

Fig. 6 is a similar view showing a lik" filling wound bobbin produced on a machine provided with the present invention.

The machine frame 1 may be of usual con-.

struction havin the fixed rail 2 on which the spinning spind es 3 are mounted and carrying the bobbins or other holders 4 on which the yarn is to be wound. In'the present instance of the invention the machine is shown as of the ring spinning type, wherein the ring-rail 5 is provided with the usual rings and travelers, all. as well understood by those skilled in the art.

Extending from the ring-rail 5 are a series of lifter rods 7 only one of which is shown, the lower ends of which rest upon or are connected to a lever 8 as at 9. The lever 8, of which there may be more than one, is pivotally mounted at 10 to a bracket 11 supported from the machine frame, and is provided with a lifting weight 12, as usual; the construction being such that the weight 12 will tend to lift the ring rail and guides or rings 6 when permitted so to do. Projecting upward from the lever 8 is an arm 13, which, by a rod 14, may be connected to similar levers arranged lengthwise of the frame, as usual.

Pivotally mounted at 15 upoii a suitable bracket 16. projecting from the machine frame, is the builder arm 17 having a roll or pin 18 which normally bears upon the builder cam 19. The builder cam is suitably mounted upon a shaft 20 carried by bearings 21 formed in the bracket 16 and in the frame of the machine respectively. The cam 19 is positively driven by a suitable train of mechanism from a suitable source of power.

The particular mechanism for operating the v cam illustrated in the present illustration of the invention consists of a bevel gear 22 secured to the cam shaft 20 which meshes with a similar bevel gear 23 secured to the actuating shaft 24 which may be driven or rotated from a suitable source of power, the construction being such that as the builder cam is rotated, the builder arm 17 will be raised and lowered as common and well understood in this class of machines.

Mounted for operative movement on the builder arm 17 is a worm wheel 25 having a winding drum 26 to which is secured one end of a chain or other flexible connection 27 extending from the builder arm or drum 26- about a suitable guide pulley 28 mounted on the machine frame. Extendmg from the pulley 28 is a flexible connection 29 which joins the pulley 28 with an arm 30, which may be the usual segment arm, common in this class of machines, or as illustrated in the drawing, it may be adjustably secured to the upright arm 13 by the adjustable connection 31 as indicated in Fig. 1, the constructionbeing such that as the cam 19 is rotated the projecting or riser portions of the cam will pull upon the connections 27 and 2 9 to lift the weight 12 of the lever 8, thereby loweringthe guide or ring-rail 5; and as the lower portions of the cam pass the roller or pin 18 of the builder arm the weight 12 will act to raise the guide or ring-rail 5.

In this class of machines, where the filling is to be laid upon the bobbins or carrier by a filling wind, it is desirable that the ring-rail shall rise a little higher and drop not so far on each succeeding traverse movement of the able means such as the pawl 34 and its connected operating rod 35. The parts thus far described may be of usual construction, which operate during the rotation of the builder cam 19 to lay the yarn by a filling wind upon the bobbin 34, Fig. 4, in overlying conical layers, as indicated. Owing to the back lash or lost motion that necessarily exists in the train of mechanism for operating the builder cam, a dwell occurs or is liable to occur at each end of the traverse movement of the guide or ring-rail 5. This may be caused by the fact that the uniform motion cam 19 has its cam portions 35 and 36 differently related to or inclined with respect to the axis of the builder cam, the effect being that when the yarn is wound upon the bobbin 34, as indicated in Fig. 5, there will be produced at the upper and lower terminal points of traverse in the guide or ring-rail, a bunching or overlapping of the yarn as indicated in ageneral way at 37, Fig. 5. This bunching or overlapping of the yarn at these points, especially in a fillingwound bobbin, is liable to cause trouble during the weaving operation when the filling wound bobbin is placed in the loom shuttle and the loom is operated, and by the existence of such bunches or overlying portions, the form and character of the wind itself is disadvantageously affected.

One of the aims and purposes of the present invention is to obviate this overlapping or bunching of the yarn where the guide or ring-rail changesgits direction of movement; and as one form of means to this end, the builder arm 17 has pivotally connected thereto at 38, an auxiliary arm 39 provided with a roller or pin 40 adapted to bear upon the builder cam 19 at one side of the pin or roller 18 which projects from the builder arm 17, and said auxiliary arm 39 is yieldably connected with the builder arm 17 so that when the meeting point of the portions 35 and 36, of the builder cam passes successively the pin or roller 18 of the builder arm, the auxiliary arm 39 will prevent back lash or lost motion incident to the driving mechanism for the cam and prevent a dwell at the ends of the traverse.

The yielding connection of the auxiliary arm 39 to the builder arm may be variously contrived, but in the present instance of the invention, the builder arm has secured thereto, as indicated in Fig. 4, the bracket 41, and the auxiliary arm 39 has extending therefrom a bracket or arm 42. The end portions of the brackets 41, 42 are extended laterally as indicated in Fig. 4 and between such extended portions is passed a rod 43 which may pass loosely through each of the brackets 41, 42 as indicated in Fig. 4. Surrounding the rod 43 is the spring 44, one end of which bears against the portions 45, 46 of the brackets 41, 42, respectively, the construction being such that while the auxiliary arm 39 is connected for movement with the'builder arm 17, the spring 44 effects a yielding connection therewith, so that the auxiliary arm 39 may yield more or less with respect to the builder arm. As will be noted, the rod 43 holds the brackets 41, 42 from separating relation when the parts are in the position indicated in Fig. 4, but permits such brackets and perforce the auxiliary and builder arms, to moverelatively against the tension of the spring 44.

As hereinbefore pointed out, the builder cam 19 is driven by a train of gearing, and as illustrated in the present instance of the invention, is turned in the direction indi cated by the arrow, Fig. 2, and the builder arm 17, through the flexible connections 27 and 29 with the weighted lever 8, will cause the pin or roll 18 to bear forcibly against the cam portions of the builder cam. When the builder cam 19 is in the position indicated in Fig. 2, for instance,'the weight 12, acting through the connections stated, will cause the pin or roll 18 to forcefully press against the portion 36 of the builder cam and perforce, tend to advance the buildercam in the direction of its rotation, to take up any lost motion or backlash in the cam driving mechanism., When the cam rotates, however, the roll 40 of the auxiliary arm 39 meets the portion 35 of the builder cam and rides along said portion under the yielding action of its spring 44, thereby tending to turn the cam in the opposite direction, as the roll or pin 18 moves into the low part of the cam, so that when the roll or pin 18 is in the low part of the cam which indicates the end of the traverse movement of the guide or ring-rail 5, the auxiliary arm 39 will have taken up the back lash in the train of gearing, with the result that when the guide or ring-rail changes its direction of travel by the pin or roller 18 riding along the part 35 of the cam, it will'respond to the demands of the cam-at once, without a dwell caused by :the back lash or lost motion in the 'train of operating gearing which actuates the cam. In other words, by properly balancing the tension of the spring 44 and the weight 12, the auxiliary arm 39 will cause any back lash or lost motion in the cam actuating mechanism to be distributed between the ends of the traverse movement, rather than cause a dwell at. the ends of the traverse, and thus avoid the bunching or overlapping of the yarn as is common in the. old forms- .39 will act upon the builder cam 19 to take up any lost motion or back lash in the transmitting operating mechanism of the cam be fore the pin or roll 18 reaches the part of the cam which determines the limit of the upward or downward terminal portions of the traverse movement; and while the described embodiment' of the invention is found to be a good, practical form thereof, it will be understood that modifications may be made within the true scope of the invention as pointed out by the claims.

What is claimed is 1. In a builder motion for spinning or winding machines, the combination of yarn guiding means for directing the yarn to carriers or bobbins on which it is to be wound, a builder motion including a cam, means for actuating the cam, connections between the cam and guiding means for traversing the latter, and means acting upon the cam as it changes the direction of travel of the yarn guiding means for preventing a dwell in the.

2. In a builder motion for spinning or winding machines, the combination of yarn guiding means, a weight for moving the yarn guiding means in one direction, a builder motion for moving the guiding means in the opposite direction including a cam and builder arm, cam operating means,

connections between the builder arm and weight, and means independent of the cam operating means acting upon the surface of the cam during the traverse of the guiding means to nullify back lash or lost motion in the cam driving means at the end of the traverse.

3. In a builder motion for spinning or winding machines, the combination of yarn guidin means, a weightfor moving said means in one direction, a builder motion for moving the guiding means in the opposite direction, includin a cam, actuating mechanism therefor, a builder arm, connections between the builder arm and weight acting to hold the builder arm against the cam, and yielding means tending to turn the cam alternately in opposite directions to prevent a dwell in the yarn guiding means at the end of its traverse due to back lash or lost motion in the cam actuating means.

4. A builder'motion comprising a builder cam, a builder arm bearing against said cam and actuated thereby, mechanism for actuating the cam, and means acting to turn the loo thereby, and means other than the cam-ac tuating mechanism acting upon the cam during the oscillating movementbf the builder arm for distributing any back lash or lost motion in the cam actuating mechanism between the limits of movement of the builder arm.

6. A builder motion comprising, in combination, a builder cam, mechanism for actuating the builder cam, a builder arm bearing against the builder cam and oscillated thereby, and means mounted upon the builder arm and acting upon the cam during the oscillating movement of the builder arm'to take up back lash or lost motion in the cam actuating means.

7. In a builder motion for spinning machines, the combination of a ring-rail, a weighted lifter arm, a builder cam, means for rotating the cam, a builder arm, connections between the builder arm and weighted lifter arm, an auxiliary arm yieldingly connected to the lifter arm and engaging the builder cam at one side of point of engagement between the builder cam and builder arm and acting to take up back lash or lost motion in the builder cam rotating means during the traverse of the ring-rail to prevent a dwell in the ring-rail at the terininals of its traverse movement.

8. Abuilder motion comprising a builder cam, mechanism for rotating the cam, a builder arm havin a roll or pin held yieldingly against the uilder cam,'an auxiliary arm pivotally mounted and movable with and relatively to the builder arm and acting upon the cam independently of its actuating mechanism during oscillating movement of the builder arm.

9. A builder motion comprising a builder cam, means for actuating it, a builder arm having a roll or pin bearing against the builder cam, an auxiliary arm bearing against the builder cam at one side of said roll or pin, and yielding means acting upon the auxiliary arm to move the cam about its axis an amount permitted by back lash or lost motion in the builder cam actuating means.

10. In a machine of the character described, the combination of guides for directing yarn to the bobbins or carriers being naaaaea wound, and means for traversing the guides longitudinally of the bobbins or carriers, including constantly-acting means tending to move the guides in one direction, a cam and builderarm acting against said constantlyacting means for causing the guides to move in the opposite direction, a train of mechanism for operating the cam, and means acting upon the cam as it is rotated to move it alternately in opposite directions as the guides are being moved longitudinally of the bobbins or carriers between the limits of the guide movements.

11. In a builder motion, a builder cam having cam surfaces inclined toward opposite sides of the axis of the cam, means for rotating the cam, a builder arm having a pin or roll adapted to bear against the inclined surfaces of the cam, means acting continuously to force the pin or roll against the surfaces of the cam as the latter rotates, guides operatively connected to said means to direct yarn onto bobbins being wound, and means acting upon the cam to take up back lash or lost motion in the cam rotating means while the said pin or roll is traveling along an inclined surface of the cam between the terminals of the incline.

12. In a builder motion, the combination of yarn guiding means, a builder arm, con nections between the builder arm and yarn guiding means, a builder cam, means for continuously rotating the cam, and means tending to turn the cam alternately in opposite directions to prevent dwell of the yarn guiding means at the end of its traverse due to lost motion in the cam rotating means.

13. In a builder motion, the combination of yarn uiding means, a builder arm, connections etween the builder arm and yarn guiding means, a builder cam, means for continuously rotating the builder cam, said builder arm having a pin or roll bearing upon the builder cam, and. means mounted on the builder arm and acting on the builder cam to prevent a dwell of the yarn guiding means at the end of its traverse due to lost motion in the cam rotating means.

14. A builder motion, comprising yarn guiding means, a builder cam, a builder arm bearing against and operated by the builder cam, a train of mechanism for continuously operating the builder cam, and means in addition to said train of mechanism for preventing a dwell of the yarn guiding means at the end of'its traverse due to lost motion in the train of said mechanism.

In testimony whereof, I have signed my 7 name to this specification.

ALBERT GASTONGUAY. 

